Alexander Bulekov 61dacb401b async: Add an optional reentrancy guard to the BH API
Devices can pass their MemoryReentrancyGuard (from their DeviceState),
when creating new BHes. Then, the async API will toggle the guard
before/after calling the BH call-back. This prevents bh->mmio reentrancy
issues.

Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-Id: <20230427211013.2994127-3-alxndr@bu.edu>
[thuth: Fix "line over 90 characters" checkpatch.pl error]
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit 9c86c97f12c060bf7484dd931f38634e166a81f0)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
[mjt: minor context adjustment in include/block/aio.h and include/qemu/main-loop.h for 7.2]
2023-09-11 10:53:50 +03:00
..
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2022-07-04 13:42:08 +02:00
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